any.h

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/***************************************************************************
 *   Copyright (C) 2004-2005 by Reality Rift Studios                       *
 *   http://www.realityrift.com  -  mattias@realityrift.com                *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef neo_core_any_h
#define neo_core_any_h

#include "platform.h"
#include "type.h"

namespace neo {
namespace core {

class Any
{
    public:

    inline                                                  Any();


    template < typename T > inline                          Any( const T& data );


    inline                                                  Any( const Any& any );

    inline                                                 ~Any();


    template < typename T > inline Any&                     operator = ( const T& rhs );


    inline Any&                                             operator = ( const Any& rhs );

    inline void                                             clear();
    

    inline bool                                             empty() const;


    inline const std::type_info&                            getType() const;


    inline const TypeInfo&                                  getTypeInfo() const;


    template < typename T > inline T&                       get() const;


    inline void*                                            getRaw() const;


    inline void                                             swap( Any& any );
    
    private:
    
    class StorageBase
    {
        public:

        TypeInfo                                            _type;

        inline                                              StorageBase( const TypeInfo& type );
        inline virtual                                     ~StorageBase();
        virtual const std::type_info&                       getType() const = 0;
        virtual void*                                       getRaw() = 0;
        virtual StorageBase*                                clone() const = 0;
    };

    template < typename T > class Storage : public StorageBase
    {
        public:

        typedef T*                                          pointer_type;
        
        inline                                              Storage( const T& data );
        inline virtual                                     ~Storage();
        inline virtual const std::type_info&                getType() const;
        virtual void*                                       getRaw();
        inline virtual StorageBase*                         clone() const;

        T                                                   _data;
    };

    template < typename T > class Storage< T* > : public StorageBase
    {
        public:

        typedef T*                                          pointer_type;
        
        inline                                              Storage( T* const& data );
        inline virtual                                     ~Storage();
        inline virtual const std::type_info&                getType() const;
        virtual void*                                       getRaw();
        inline virtual StorageBase*                         clone() const;

        T*                                                  _data;
    };

    mutable StorageBase*                                    _p_data;
};

#include "any.inl"


inline void swap( Any& lval, Any& rval ) { lval.swap( rval ); }

}
}

#if !NEO_PYTHON_GENERATOR
namespace std { template <> inline void swap< neo::core::Any >( neo::core::Any& lval, neo::core::Any& rval ) { neo::core::swap( lval, rval ); } }
#endif

#endif

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